| ABI Changelog |
| ============== |
| This changelog contains information about ABI changes in libc++. Specifically |
| the addition and deletion of symbols from the libc++ dylib. |
| |
| Each entry should start with the revision number followed by a description of |
| the change. The entry should contain a summary of the ABI changes made, |
| including what symbols were added, removed, or changed. |
| |
| To generate a summary use "sym_diff.py" diffing against the appropriate ABI list. |
| Afterwards the ABI list should be updated to include the new changes. |
| |
| New entries should be added directly below the "Version" header. |
| |
| ----------- |
| Version 8.0 |
| ----------- |
| |
| * rXXXXX - Remove std::bad_array_length |
| |
| The change removes the definition of std::bad_array_length (which never made |
| it into the standard) from the headers and the dylib. This is technically an |
| ABI break because the symbols are shipped starting with mac OSX 10.13, however |
| users couldn't be relying on the functionality because it is marked as being |
| unavailable using Clang's availability attribute. |
| |
| x86_64-apple-darwin16.0 |
| ----------------------- |
| Symbol removed: __ZNKSt16bad_array_length4whatEv |
| Symbol removed: __ZNKSt16bad_array_length4whatEv |
| Symbol removed: __ZNSt16bad_array_lengthC1Ev |
| Symbol removed: __ZNSt16bad_array_lengthC1Ev |
| Symbol removed: __ZNSt16bad_array_lengthC2Ev |
| Symbol removed: __ZNSt16bad_array_lengthC2Ev |
| Symbol removed: __ZNSt16bad_array_lengthD0Ev |
| Symbol removed: __ZNSt16bad_array_lengthD0Ev |
| Symbol removed: __ZNSt16bad_array_lengthD1Ev |
| Symbol removed: __ZNSt16bad_array_lengthD1Ev |
| Symbol removed: __ZNSt16bad_array_lengthD2Ev |
| Symbol removed: __ZNSt16bad_array_lengthD2Ev |
| Symbol removed: __ZTISt16bad_array_length |
| Symbol removed: __ZTISt16bad_array_length |
| Symbol removed: __ZTSSt16bad_array_length |
| Symbol removed: __ZTSSt16bad_array_length |
| Symbol removed: __ZTVSt16bad_array_length |
| Symbol removed: __ZTVSt16bad_array_length |
| |
| * r347395 - Making libc++ build under -fvisibility=hidden on Linux |
| |
| The change marks several function templates as hidden. This removes symbols |
| from the shared library, but this is not an ABI break because it's impossible |
| for programs linking against libc++.so to actually depend on that symbol. |
| The reason is that the symbol is exported from the shared library through |
| an implicit instantiation present in the shared object itself only. Furthermore, |
| if a user's shared object was implicitly instantiating one of these functions, |
| marking that symbol as hidden would not be an ABI break for them because none |
| of their users could actually be using the symbol in their dylib (because |
| it's an implicit instantiation). |
| |
| x86_64-linux-gnu |
| ---------------- |
| Symbol removed: _ZNSt3__125__num_get_signed_integralIlEET_PKcS3_Rji |
| Symbol removed: _ZNSt3__125__num_get_signed_integralIxEET_PKcS3_Rji |
| Symbol removed: _ZNSt3__127__num_get_unsigned_integralIjEET_PKcS3_Rji |
| Symbol removed: _ZNSt3__127__num_get_unsigned_integralImEET_PKcS3_Rji |
| Symbol removed: _ZNSt3__127__num_get_unsigned_integralItEET_PKcS3_Rji |
| Symbol removed: _ZNSt3__127__num_get_unsigned_integralIyEET_PKcS3_Rji |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIaaEEPaEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIccEEPcEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIddEEPdEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIffEEPfEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIhhEEPhEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIiiEEPiEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIjjEEPjEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIllEEPlEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessImmEEPmEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIssEEPsEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIttEEPtEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIwwEEPwEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIxxEEPxEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__17__sort5IRNS_6__lessIyyEEPyEEjT0_S5_S5_S5_S5_T_ |
| Symbol removed: _ZNSt3__1plIcNS_11char_traitsIcEENS_9allocatorIcEEEENS_12basic_stringIT_T0_T1_EERKS9_PKS6_ |
| Symbol removed: _ZSt18make_exception_ptrINSt3__112future_errorEESt13exception_ptrT_ |
| |
| * r345260 - Making libc++ build under -fvisibility=hidden on Mac OS |
| |
| The change marks __thread_specific_ptr<__thread_struct>::__at_thread_exit(void*) |
| with hidden visibility. This removes a symbol from the shared libraries, |
| however this is not an ABI break because it's impossible for programs linking |
| against libc++.dylib to actually depend on that symbol. The reason is that |
| the symbol is exported from the shared library through an implicit |
| instantiation present in the dylib itself only. Furthermore, if a user's |
| dylib was implicitly instantiating __thread_specific_ptr<T>::__at_thread_exit |
| (because it's defined in the headers), marking that symbol as hidden would |
| not be an ABI break for them because none of their users could actually be |
| using the symbol in their dylib (because it's an implicit instantiation). |
| |
| This change also marks __start_std_streams as hidden -- this variable is |
| only required to initialize the streams, and nobody should depend on it |
| from outside the dylib. |
| |
| x86_64-linux-gnu |
| ---------------- |
| Symbol removed: _ZNSt3__121__thread_specific_ptrINS_15__thread_structEE16__at_thread_exitEPv |
| Symbol removed: _ZNSt3__119__start_std_streamsE |
| |
| x86_64-apple-darwin16.0 |
| ----------------------- |
| Symbol removed: __ZNSt3__221__thread_specific_ptrINS_15__thread_structEE16__at_thread_exitEPv |
| Symbol removed: __ZNSt3__119__start_std_streamsE |
| |
| ----------- |
| Version 7.0 |
| ----------- |
| |
| * r338479 - Elementary string conversions for integral types |
| |
| The change emits __u64toa and __u32toa under std::__1::__itoa. |
| |
| x86_64-linux-gnu |
| ---------------- |
| Symbol added: _ZNSt3__16__itoa8__u64toaEmPc |
| Symbol added: _ZNSt3__16__itoa8__u32toaEjPc |
| |
| x86_64-apple-darwin16.0 |
| ----------------------- |
| Symbol added: __ZNSt3__16__itoa8__u64toaEyPc |
| Symbol added: __ZNSt3__16__itoa8__u32toaEjPc |
| |
| |
| * r333467 - Fix embarrasing typo in uncaught_exceptions. |
| |
| This bug caused __uncaught_exception to be ODR used instead of |
| __uncaught_exceptions. This change is non-ABI breaking because the symbols |
| for std::uncaught_exception and std::uncaught_exceptions haven't changed, |
| and because users shouldn't be depending directly on libc++ exporting |
| __uncaught_exception/__uncaught_exceptions. |
| |
| All Platforms |
| ---------------- |
| SYMBOL REMOVED: __cxa_uncaught_exception |
| Symbol added: __cxa_uncaught_exceptions |
| |
| |
| ----------- |
| Version 5.0 |
| ----------- |
| |
| * r313500 - Fix undefined "___cxa_deleted_virtual" symbol in macosx |
| |
| x86_64-linux-gnu |
| ---------------- |
| No changes |
| |
| x86_64-apple-darwin16.0 |
| ----------------------- |
| Symbol added: ___cxa_deleted_virtual |
| |
| * r296729 - Remove std::num_get template methods which should be inline |
| |
| These functions should never have had visible definitions in the dylib but |
| since they were previously not specified with 'inline' they accidentally |
| got emitted. This change is non-ABI breaking because every "linkage unit" |
| must contain its own definition. |
| |
| x86_64-linux-gnu |
| ---------------- |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE15__do_get_signedIlEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE15__do_get_signedIxEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedIjEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedImEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedItEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE17__do_get_unsignedIyEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE23__do_get_floating_pointIdEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE23__do_get_floating_pointIeEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIcNS_19istreambuf_iteratorIcNS_11char_traitsIcEEEEE23__do_get_floating_pointIfEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE15__do_get_signedIlEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE15__do_get_signedIxEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedIjEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedImEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedItEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE17__do_get_unsignedIyEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE23__do_get_floating_pointIdEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE23__do_get_floating_pointIeEES4_S4_S4_RNS_8ios_baseERjRT_ |
| SYMBOL REMOVED: _ZNKSt3__17num_getIwNS_19istreambuf_iteratorIwNS_11char_traitsIwEEEEE23__do_get_floating_pointIfEES4_S4_S4_RNS_8ios_baseERjRT_ |
| |
| x86_64-apple-darwin16.0 |
| ----------------------- |
| No changes |
| |
| ----------- |
| Version 4.0 |
| ----------- |
| |
| * r290651 - Add _LIBCPP_ASSERT debug handling functions |
| |
| All Platforms |
| ------------- |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionC2ERKNS_19__libcpp_debug_infoE |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionD1Ev |
| Symbol added: _ZTINSt3__124__libcpp_debug_exceptionE |
| Symbol added: _ZNSt3__129__libcpp_throw_debug_functionERKNS_19__libcpp_debug_infoE |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionD2Ev |
| Symbol added: _ZNSt3__129__libcpp_abort_debug_functionERKNS_19__libcpp_debug_infoE |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionC2ERKS0_ |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionC1Ev |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionC1ERKNS_19__libcpp_debug_infoE |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionC2Ev |
| Symbol added: _ZTSNSt3__124__libcpp_debug_exceptionE |
| Symbol added: _ZNSt3__123__libcpp_debug_functionE |
| Symbol added: _ZNKSt3__124__libcpp_debug_exception4whatEv |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionC1ERKS0_ |
| Symbol added: _ZNSt3__124__libcpp_debug_exceptionD0Ev |
| Symbol added: _ZTVNSt3__124__libcpp_debug_exceptionE |
| Symbol added: _ZNSt3__127__libcpp_set_debug_functionEPFvRKNS_19__libcpp_debug_infoEE |
| |
| * r288547 - Implement C++17 <variant> |
| |
| All Platforms |
| ------------- |
| Symbol added: _ZTVSt18bad_variant_access |
| Symbol added: _ZTISt18bad_variant_access |
| Symbol added: _ZTSSt18bad_variant_access |
| Symbol added: _ZNKSt18bad_variant_access4whatEv |
| |
| * r285537 - Remove std::string::append template methods which should be inline |
| |
| These functions should never have had visible definitions in the dylib but |
| since they were previously not specified with 'inline' they accidentally |
| got emitted. This change is non-ABI breaking because every "linkage unit" |
| must contain its own definition. |
| |
| x86_64-linux-gnu |
| ---------------- |
| SYMBOL REMOVED: _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendIPcEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorIS9_EE5valueERS5_E4typeES9_S9_ |
| SYMBOL REMOVED: _ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6appendIPwEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorIS9_EE5valueERS5_E4typeES9_S9_ |
| |
| x86_64-apple-darwin16.0 |
| ----------------------- |
| No changes |
| |
| * r285101 - Add -fvisibility-inlines-hidden when building libc++. |
| |
| Although this change removes symbols, it should still be non-ABI breaking |
| since all of the definitions removed are inline functions. For this reason |
| removing these symbols is safe because every "linkage unit" which uses these |
| functions will contain their own definition. |
| |
| x86_64-linux-gnu |
| ---------------- |
| SYMBOL REMOVED: _ZNSt12bad_any_castD0Ev |
| SYMBOL REMOVED: _ZNSt12experimental15fundamentals_v112bad_any_castD0Ev |
| SYMBOL REMOVED: _ZNSt3__114__codecvt_utf8IDiED0Ev |
| SYMBOL REMOVED: _ZNSt3__114__codecvt_utf8IDsED0Ev |
| SYMBOL REMOVED: _ZNSt3__114__codecvt_utf8IwED0Ev |
| SYMBOL REMOVED: _ZNSt3__115__codecvt_utf16IDiLb0EED0Ev |
| SYMBOL REMOVED: _ZNSt3__115__codecvt_utf16IDiLb1EED0Ev |
| SYMBOL REMOVED: _ZNSt3__115__codecvt_utf16IDsLb0EED0Ev |
| SYMBOL REMOVED: _ZNSt3__115__codecvt_utf16IDsLb1EED0Ev |
| SYMBOL REMOVED: _ZNSt3__115__codecvt_utf16IwLb0EED0Ev |
| SYMBOL REMOVED: _ZNSt3__115__codecvt_utf16IwLb1EED0Ev |
| SYMBOL REMOVED: _ZNSt3__117__assoc_sub_stateD0Ev |
| SYMBOL REMOVED: _ZNSt3__117__assoc_sub_stateD2Ev |
| SYMBOL REMOVED: _ZNSt3__117__libcpp_sscanf_lEPKcP15__locale_structS1_z |
| SYMBOL REMOVED: _ZNSt3__119__libcpp_asprintf_lEPPcP15__locale_structPKcz |
| SYMBOL REMOVED: _ZNSt3__119__libcpp_snprintf_lEPcmP15__locale_structPKcz |
| SYMBOL REMOVED: _ZNSt3__120__codecvt_utf8_utf16IDiED0Ev |
| SYMBOL REMOVED: _ZNSt3__120__codecvt_utf8_utf16IDsED0Ev |
| SYMBOL REMOVED: _ZNSt3__120__codecvt_utf8_utf16IwED0Ev |
| |
| x86_64-apple-darwin16.0 |
| ----------------------- |
| No Changes - inline symbols are already hidden |
| |
| |
| * r284206 - Implement C++17 aligned allocation in <new> |
| |
| x86_64-linux-gnu |
| ---------------- |
| Symbol added: posix_memalign@GLIBC_2.2.5 |
| Symbol added: _ZdaPvSt11align_val_t |
| Symbol added: _ZdlPvSt11align_val_t |
| Symbol added: _ZnamSt11align_val_t |
| Symbol added: _ZdaPvmSt11align_val_t |
| Symbol added: _ZdlPvmSt11align_val_t |
| Symbol added: _ZdlPvSt11align_val_tRKSt9nothrow_t |
| Symbol added: _ZnwmSt11align_val_tRKSt9nothrow_t |
| Symbol added: _ZnamSt11align_val_tRKSt9nothrow_t |
| Symbol added: _ZdaPvSt11align_val_tRKSt9nothrow_t |
| Symbol added: _ZnwmSt11align_val_t |
| |
| * r283980 - Implement C++17 <optional> |
| |
| x86_64-linux-gnu |
| ---------------- |
| Symbol added: _ZTISt19bad_optional_access |
| Symbol added: _ZNSt19bad_optional_accessD0Ev |
| Symbol added: _ZNSt19bad_optional_accessD1Ev |
| Symbol added: _ZNSt19bad_optional_accessD2Ev |
| Symbol added: _ZTVSt19bad_optional_access |
| Symbol added: _ZTSSt19bad_optional_access |
| |
| * r278310 - Implement C++17 <any> |
| |
| x86_64-linux-gnu |
| ---------------- |
| Symbol added: _ZNKSt12bad_any_cast4whatEv |
| Symbol added: _ZNSt12bad_any_castD0Ev |
| Symbol added: _ZTISt12bad_any_cast |
| Symbol added: _ZTSSt12bad_any_cast |
| Symbol added: _ZTVSt12bad_any_cast |
| |
| * r295398 - Remove basic_string::insert and basic_string::replace template methods |
| which should be inline. |
| |
| These functions should never have had visible definitions in the dylib but |
| since they were previously not specified with 'inline' they accidentally |
| got emitted. This change is non-ABI breaking because every "linkage unit" |
| must contain its own definition. |
| |
| x86_64-linux-gnu |
| ---------------- |
| SYMBOL REMOVED: _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6insertIPKcEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorISA_EE5valueENS_11__wrap_iterIPcEEE4typeENSB_IS8_EESA_SA_ |
| SYMBOL REMOVED: _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE7replaceIPKcEENS_9enable_ifIXsr19__is_input_iteratorIT_EE5valueERS5_E4typeENS_11__wrap_iterIS8_EESF_SA_SA_ |
| SYMBOL REMOVED: _ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6insertIPKwEENS_9enable_ifIXaasr21__is_forward_iteratorIT_EE5valuesr38__libcpp_string_gets_noexcept_iteratorISA_EE5valueENS_11__wrap_iterIPwEEE4typeENSB_IS8_EESA_SA_ |
| SYMBOL REMOVED: _ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE7replaceIPKwEENS_9enable_ifIXsr19__is_input_iteratorIT_EE5valueERS5_E4typeENS_11__wrap_iterIS8_EESF_SA_SA_ |
